| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m16b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Repository | cptec.inpe.br/adm_conf/2005/10.21.21.27 | |||
| Last Update | 2006:04.16.19.15.14 (UTC) administrator | |||
| Metadata Repository | cptec.inpe.br/adm_conf/2005/10.21.21.27.10 | |||
| Metadata Last Update | 2022:03.26.18.01.16 (UTC) administrator | |||
| Secondary Key | INPE-13933-PRE/9113 | |||
| Citation Key | CorreiaAlvaManz:2006:GCSiIm | |||
| Title | A GCM Simulation of Impact of Land Cover Changes in the Amazonia on Regional Climate  | |||
| Format | CD-ROM; On-line. | |||
| Year | 2006 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 754 KiB | |||
| 2. Context | ||||
| Author | 1 Correia, Francis Wagner Silva 2 Alvala, Regina Célia dos Santos 3 Manzi, Antônio Ocimar | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJ59 | |||
| Group | 1 2 DMA-INPE-MCT-BR 3 CPT-INPE-MCT-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas da Amazônia (INPA) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 francisw@inpa.gov.br 2 regina@cptec.inpe.br 3 manzi@inpa.gov.br | |||
| Editor | Vera, Carolina Nobre, Carlos | |||
| e-Mail Address | francisw@inpa.gov.br | |||
| Conference Name | International Conference on Southern Hemisphere Meteorology and Oceanography, 8 (ICSHMO). | |||
| Conference Location | Foz do Iguaçu | |||
| Date | 24-28 Apr. 2006 | |||
| Publisher | American Meteorological Society (AMS) | |||
| Publisher City | 45 Beacon Hill Road, Boston, MA, USA | |||
| Pages | 873-878 | |||
| Book Title | Proceedings | |||
| Tertiary Type | Poster | |||
| Organization | American Meteorological Society (AMS) | |||
| History (UTC) | 2005-10-21 21:27:10 :: francisw@inpa.gov.br -> adm_conf :: 2005-12-16 02:30:01 :: adm_conf -> francisw@inpa.gov.br :: 2006-03-29 21:47:04 :: francisw@inpa.gov.br -> administrator :: 2006-04-18 20:55:40 :: administrator -> lise@dpi.inpe.br :: 2010-12-28 12:36:22 :: lise@dpi.inpe.br -> administrator :: 2010-12-29 15:55:35 :: administrator -> lise@dpi.inpe.br :: 2006 2010-12-29 16:05:42 :: lise@dpi.inpe.br -> administrator :: 2006 2010-12-29 18:51:26 :: administrator -> banon :: 2006 2011-01-02 17:14:42 :: banon -> administrator :: 2006 2022-03-26 18:01:16 :: administrator -> :: 2006 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Keywords | GCM Amazonia SSiB deforestation feedback mechanism | |||
| Abstract | To investigate the impact of changes of the Amazonian land cover on the regional and the global climate, a numerical modeling experiment with the atmospheric general circulation model of the Centro de Previsão de Tempo e Estudos Climáticos (AGCM/CPTEC), coupled to the land-surface-vegetation model (Simplified Simple Biosphere Model SSiB), was effected. Four 3-years integrations were carried out for the following deforestation scenarios: (a) no deforestation, (b) current conditions, (c) a scenario predicted for 2033, and (d) large scale deforestation. Except for the land cover changes, the initial and prescribed boundary conditions were kept identical for all integrations. An intercomparison of the integrations shows that the decrease of the root depth after deforestation plays an important role in the radiation and the energy budgets during the dry season, since less moisture in the ground is available for evapotranspiration. For all scenarios there was an increase in the surface temperature, ranging between 1.0oC for the current scenario and 1.6oC for the large-scale deforestation. The surface component of the downward solar radiation increased due to a decrease of the cloud amount over the deforested areas. A cloud feedback mechanism, in which an increase of the albedo is balanced by an increase of the downward solar radiation, was observed only with the scenario for 2033 and with the large-scale deforestation. For all scenarios, a negative feedback mechanism was observed in the hydrological cycle, since a greater amount of moisture was carried to the deforested areas. The increase of the moisture convergence was greater than the reduction of the evapotranspiration in the current scenario, leading to an increase of the precipitation. A different situation was observed for other scenarios, in which the local increase of the moisture convergence was not sufficiently intense to generate an increase in precipitation; the local water recycling was the dominant factor in these scenarios. Therefore, a partial deforestation in Amazonia may lead to a local increase of precipitation. However, if the deforestation processes remain, this condition will not be sustainable, leading to a drier condition and, consequently, to a reduction of the precipitation. | |||
| Area | MET | |||
| Type | Impacts of land cover and land use changes | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > A GCM Simulation... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > A GCM Simulation... | |||
| doc Directory Content | access | |||
| source Directory Content |
| |||
| agreement Directory Content | there are no files | |||
| 4. Conditions of access and use | ||||
| data URL | http://mtc-m16b.sid.inpe.br/ibi/cptec.inpe.br/adm_conf/2005/10.21.21.27 | |||
| zipped data URL | http://mtc-m16b.sid.inpe.br/zip/cptec.inpe.br/adm_conf/2005/10.21.21.27 | |||
| Language | en | |||
| Target File | 873-878.pdf | |||
| User Group | administrator francisw@inpa.gov.br administrator banon | |||
| Visibility | shown | |||
| Copy Holder | SID/SCD | |||
| Read Permission | allow from all | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3EUPEJL 8JMKD3MGPCW/46JKC45 | |||
| Citing Item List | sid.inpe.br/bibdigital/2022/03.26.17.47 1 | |||
| Host Collection | cptec.inpe.br/nobre/2005/06.02.21.14 cptec.inpe.br/walmeida/2003/04.25.17.12 | |||
| 6. Notes | ||||
| Mark | 1 | |||
| Empty Fields | archivingpolicy archivist callnumber contenttype copyright creatorhistory descriptionlevel dissemination documentstage doi edition identifier isbn issn label lineage mirrorrepository nextedition notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark url versiontype volume | |||